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Geometrical Optics question

2020 · 6 Sep · Shift 2 · Q45
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Geometrical Optics question

2020 · 6 Sep · Shift 2 · Q45

JEE MainPhysicsGeometrical OpticsMCQ+4 / −1
A double convex lens has power P and same radii of curvature R of both the surfaces. The radius of curvature of a surface of a plano-convex lens made of the same material with power 1.5 P is :
  1. A
    R3{R \over 3}3R​
  2. B
    3R2{{3R} \over 2}23R​
  3. C
    R2{R \over 2}2R​
  4. D
    2R
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